Finding the Fourth Proportional to 554,899,871.68, 832,466,603.36 and 209,845,781.44
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Solution
The fourth proportional to 554,899,871.68, 832,466,603.36 and 209,845,781.44 is: 314,812,840.69
Step by Step Solution
- Step 1: Write the proportion equation
554,899,871.68 : 832,466,603.36 = 209,845,781.44 : x - Step 2: Convert to fraction form
554,899,871.68/832,466,603.36 = 209,845,781.44/x - Step 3: Cross multiply
554,899,871.68x = 832,466,603.36 × 209,845,781.44 - Step 4: Simplify right side
554,899,871.68x = 174,689,604,904,781,728 - Step 5: Solve for x
x = 174,689,604,904,781,728/554,899,871.68 - Step 6: Final answer
x = 314,812,840.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.